Aotocontrol systems supplies texan internal gear crescent seal type colour pumps, as per international standards, to suit rotary printing machines. The basic principle is that a captive volume increases in size during suction, then decreases to force the fluid out of the outlet port of the pump, the pumps are available in models sb-4, sb-5 and sb-7. They have sturdy design to give long trouble-free life and performance. The company manufactures ss 316 diecast and gun- metal body gear pumps for laxm/harish range of machines. It also supplies head bearings [kaydon type] for various rotary heads.